Prompt 3 of 7
Name an animal that produces its own light
107 accepted answers across 5 rarity tiers.
100 ptsOne in a Krillion2 answers
The rarest possible answer — almost no player finds it.
- Latia limpet— New Zealand's stream limpet is the only freshwater animal that glows.
- Railroad worm— A beetle larva glowing red at the head, green along its body.
85 ptsDeep Cut75 answers
Genuinely obscure. Most players never think of it.
- Amphipod
- Arctic comb jelly
- Atolla jellyfish
- Barreleye
- Black dragonfish
- Bristle worm
- Bristlemouth
- Brittle star
- Clusterwink snail
- Cock-eyed squid
- Colossal squid
- Copepod
- Crinoid
- Dana octopus squid
- Deep-sea arrow worm
- Deepwater cardinalfish
- Doliolid
- Enope squid
- Glass squid
- Golden zoanthid
- Gossamer worm
- Green bomber worm
- Gulper eel
- Helmet jellyfish
- Humboldt squid
- Hydroid
- Iridogorgia
- Kitefin shark
- Lanternbelly
- Larvacean
- Lightfish
- Luminous cardinalfish
- Luminous centipede
- Luminous springtail
- Mauve stinger
- Midshipman fish
- Midwater octopus
- Mysid shrimp
- Neon flying squid
- Ninja lanternshark
- Ostracod
- Parchment tube worm
- Pearlside
- Pinecone fish
- Ponyfish
- Pygmy shark
- Pyrosome
- Ram's horn squid
- Rattail
- Ribbon worm
- Salp
- Sea pansy
- Sea pen
- Sea slug
- Sea walnut
- Siphonophore
- Slickhead
- Slimehead
- Smalleye pygmy shark
- Snaggletooth
- Splendid lanternshark
- Starworm
- Stoplight loosejaw
- Strawberry squid
- Striped flying squid
- Sweeper
- Taillight shark
- Tubeshoulder
- Tunicate
- Velvet belly lanternshark
- Velvet dogfish
- Viper dogfish
- Whip-lash squid
- Whipnose angler
- Wolftrap angler
60 ptsRare23 answers
Uncommon — only a minority of players land here.
- Bamboo coral
- Bobtail squid
- Click beetle
- Comb jelly
- Cookiecutter shark
- Crystal jelly
- Dragonfish
- Firefly squid
- Fireworm
- Flashlight fish
- Glowing millipede
- Glowing sucker octopus
- Hatchetfish
- Lanternfish
- Lanternshark
- Luminous earthworm
- Luminous land snail
- Piddock
- Sea cucumber
- Shrimp
- Starfish
- Vampire squid
- Viperfish
30 ptsSchooler4 answers
A solid, middling pick shared with plenty of other players.
- Glowworm
- Krill— Photophores on each krill turn a whole swarm blue in the dark.
- Squid
- Zooplankton— Tiny drifting animals, and many of them flash blue when disturbed.
10 ptsPlankton3 answers
The most common answer on the board.
- Anglerfish
- Firefly
- Jellyfish